Correlating preoperative cytology and colposcopic biopsy with final histology after conization of the cervix

Helen E. Cejtin*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Objectives. We set out to evaluate the predictive value of preoperative cytology and colposcopic histology in determining final pathology after conization of the cervix in the era of the Bethesda system. Methods. A retrospective review of the charts of 280 patients who had cold-knife conization was undertaken. Preoperative cytology and colposcopic biopsy histology were compared to the cone biopsy histology. The Spearman's correlation coefficient was used to determine the correlation between both preoperative cytology and histology and histology of the cone biopsy. Results. Preoperative cytology matched cone histology in only 56.5% of cases and was within one grade in 92.3% of cases, with a correlation of 0.369. Most outliers were high-grade cytology not confirmed at cone biopsy. Preoperative biopsy correlated even less with cone histology: Exact correlation occurred in 40% of cases, correlation within one grade was seen in 69.4% of cases, and the Spearman correlation coefficient was 0.328. Most outliers were high-grade lesions on cone biopsy that were not detected with colposcopic biopsy. Conclusions. Preoperative cytology and histology do not predict final pathology with enough accuracy to allow management to be deter-mined by them. Conization of the cervix remains a useful procedure in the triage of the abnormal cytological smear.

Original languageEnglish (US)
Pages (from-to)87-92
Number of pages6
JournalJournal of Lower Genital Tract Disease
Volume2
Issue number2
DOIs
StatePublished - Jan 1 1998

Keywords

  • Cervical intraepithelial neoplasia
  • Colposcopy
  • Cone biopsy
  • Preoperative workup

ASJC Scopus subject areas

  • Obstetrics and Gynecology

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